<template>
  <view class="">
    <view class="search-box">
      <uni-search-bar placeholder="请输入搜索内容" cancelButton="none" @input="input" :radius="100" ></uni-search-bar>
      
    </view>
    <view class="sugg-list" v-if="searchResults.length!==0">
      <view class="sugg-item" v-for="(item,i) in searchResults" :key="i" @click="gotoDetails(item)">
        <view class="goods-name">
          {{item.goods_name}}
        </view>
        <uni-icons type="arrowright" size="16"></uni-icons>
      </view>
    </view>
    <view class="history-box" v-else>
      <view class="history-title">
        <text>搜索历史</text>
        <uni-icons type="trash"size="17" @click="clean"></uni-icons>
      </view>
      <view class="history-list">
        
        <uni-tag :text="item" v-for="(item,i) in historyList" :key="i" @click="gotoGoodsList(item)"></uni-tag>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        timer:null,
        kw:'',
        searchResults:[],
        historyList:[]
      };
    },
    onLoad() {
      this.historyList=JSON.parse(uni.getStorageSync('kw')||'[]')
    },
    methods:{
      input(e){
        clearTimeout(this.timer)
        this.timer=setTimeout(()=>{
          this.kw=e
          
          this.getSearchList()
          },500)
      },
      async getSearchList(){
        if(this.kw===''){
          this.searchResults=[]
          return
          }
        const {data:res}=await uni.$http.get('/api/public/v1/goods/qsearch',{query:this.kw})
        if (res.meta.status!==200) return uni.$showMsg()
        this.searchResults=res.message
        this.saveSearchHistory()
      },
      gotoDetails(item){
        uni.navigateTo({
          url:'/subpkg/goods_detail/goods_detail?goods_id='+item.goods_id
        })
      },
      saveSearchHistory(){
        const set=new Set(this.historyList)
        set.delete(this.kw)
        set.add(this.kw)
        this.historyList=Array.from(set)
        uni.setStorageSync('kw',JSON.stringify(this.historyList))
      
      },
      clean(){
        this.historyList=[]
        uni.setStorageSync('kw','[]')
      },
      gotoGoodsList(kw){
        uni.navigateTo({
          url:'/subpkg/goods_list/goods_list?query='+kw
        })
      }
    },
    computed:{
      histories(){
        return this.historyList.reverse()
      }
      }
    }
  
  
</script>

<style lang="scss">
  .search-box{
    background-color: #C00000;
  }
  .sugg-list{
    padding:0 5px;
    .sugg-item{
      font-size: 12px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding:10px 0;
      border-bottom: #efefef 1px solid;
      .goods-name{
        white-space:nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        margin-right:5px
      }
    }
  }
  .history-box{
    margin:0px 5px;
    .history-title{
      display: flex;
      justify-content: space-between;
      height: 35px;
      align-items: center;
      font-size: 13px;
      border-bottom:1px solid #e7e7e7}
    .history-list{
        display: flex;
        flex-wrap: wrap;
        .uni-tag{
          margin-top:7px;
          margin-right:5px;
          display: inline-block;
        }
      }
    
  }
</style>
